Comparison

Gaussmeter NS pole vs EMF Detector (Scanner)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Gaussmeter NS pole

Measure magnetic fields in microteslas using your device's sensor. Simply place the screen near a magnet to identify its North or South pole.

Highlights
  • Magnetic field measurement
  • Microtesla units
  • S or N pole detection
  • Uses device's magnetic sensor
Features
Read full description

Magnetic field measurement in microteslas by magnetic sensor. Put on the screen and determine N-pole or S-pole of the magnet.

About

EMF Detector (Scanner)

Visualize electromagnetic field activity using your device's magnetometer. Monitor real-time changes with clear graphs and history logs. Useful for checking electronics and exploring magnetic environments.

Highlights
  • Real-time EMF meter
  • Live waveform and graph views
  • FFT frequency analysis
  • Signal change detection
  • Measurement history
  • Export options (PDF, video)
  • Interactive sound effects
Features
Read full description

EMF Detector helps you visualize Electromagnetic Field (EMF) activity around you using your iPhone’s built-in magnetometer. Whether you are checking electronics, exploring your environment, or tracking unusual magnetic changes, EMF Detector provides a clear and easy-to-read real-time experience. KEY FEATURES • Real-time EMF meter with smooth, responsive updates • Live waveform and graph views for continuous monitoring • FFT view to inspect frequency components of signal changes • Signal change detection to catch sudden spikes and drops • Measurement history so you can review previous sessions • Export options (such as PDF and video capture) for sharing and reporting • Sound effects and feedback options for interactive monitoring • Clean, intuitive interface designed for quick readings USE CASES • Scan around household electronics • Compare magnetic activity in different rooms • Observe signal behavior near cables, adapters, and devices • Record and share findings for personal reference IMPORTANT NOTES • This app is for general informational and educational use. • Because this app uses your phone’s built-in sensors, readings may vary depending on your device specifications, device condition, and surrounding environment; use all measurements for reference only. Upgrade options may be available for additional features and an enhanced experience.

Screenshots

Gaussmeter NS pole1 screens
EMF Detector (Scanner)4 screens

Verdict

The call

The clearest difference is review sentiment: Gaussmeter NS pole at 71% against EMF Detector (Scanner)'s 0%. Gaussmeter NS pole also leads on rating (4.3 vs 1.0) and monetization model (ad-supported vs free with in-app purchases). EMF Detector (Scanner)'s advantage is update cadence (weekly vs every 17 months). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Gaussmeter NS pole sells 1 one-off in-app purchase and EMF Detector (Scanner) sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Gaussmeter NS pole holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Gaussmeter NS pole has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Gaussmeter NS pole's written reviews are positive against 0% of EMF Detector (Scanner)'s.

UpkeepUpdate frequency

Gaussmeter NS pole ships an update every 17 months, EMF Detector (Scanner) weekly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Gaussmeter NS pole versus EMF Detector (Scanner): the parameters behind the verdict, then further details
ParameterGaussmeter NS poleEMF Detector (Scanner)
PriceFreeFree
Rating4.3 (9 ratings) — better1.0 (1 ratings)
Positive reviews71.4% of reviews — better0.0% of reviews
Number of ratings9 — better1
Update frequencyEvery 17 monthsWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15 — better17.6
Further details — not scored
Size11 MB6 MB
Age rating4+4+
DeveloperSHIGETO TAKAGIJongMin Lee

Customer experience

Gaussmeter NS pole

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

EMF Detector (Scanner)

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Gaussmeter NS pole

One-time1
  • Remove Ads$1.99
2 purchases

EMF Detector (Scanner)

One-time2
  • 1 Month Premium Pass$0.99
  • 1 Year Premium Pass$2.99

Questions

Is Gaussmeter NS pole free?
Gaussmeter NS pole is free to download, with in-app purchases available.
Is EMF Detector (Scanner) free?
EMF Detector (Scanner) is free to download, with in-app purchases available.
Which has better reviews, Gaussmeter NS pole or EMF Detector (Scanner)?
Gaussmeter NS pole is rated higher. Gaussmeter NS pole averages 4.3 out of 5 from 9 ratings, while EMF Detector (Scanner) averages 1.0 from 1 ratings.
Do Gaussmeter NS pole or EMF Detector (Scanner) have ads?
Both Gaussmeter NS pole and EMF Detector (Scanner) show ads.
Which is updated more often, Gaussmeter NS pole or EMF Detector (Scanner)?
Gaussmeter NS pole ships an update every 17 months, and EMF Detector (Scanner) weekly. Most recently, Gaussmeter NS pole was updated on November 1, 2026 and EMF Detector (Scanner) on October 31, 2026.

Other comparisons